电路分析-第二版-刘健-课后答案[1-8章].khdaw

1-11-110.1AI2I1-11-21-2U1-31-310sin100mVutt=0.005su?1-21-3u=sin100(*0.005)=10sin0.5=10mv1-41-41-4(a)p=1*2=2w()(b)p=1*2=2w()1u=sin100(u=sin100(10sin100mV10sin100mV10sin100mV1-21-2*0.005)*0.005)==10sin0.510sin0.5(c)p=-1*2=2w()(d)p=1*2=2w()1-51-51-5(a)U=-2mV(b)I=-2A(c)P=-3e-tw1-612V8500J12(1)p=017.036008500tWW(2)I=31045.112017.0UPA1-71-71-71-81-8i245.14.145.14.1883AA1-8ai=7+5=12Abi=4+1-1=5A1-91-9RIR=8+(13-3)=18AR=U/IR=11-101-10ui1-91-10U=7+5=12VI=U/R=12/1000=12mA1-111-1111.6mA,6.3V,iuR2?6.3V,21uR30.24Wi8Vu(1)R=K94.3106.13.63(2)P=WRu89.12(3)i=Aup03.031-91-9U=7+5=12VU=7+5=12V1-91-9I=U/R=12/1000=12mAI=U/R=12/1000=12mA1-121-12(a)1-12(b)i100pFC1-111-12210)22(0)(3ttutmsmstmsmst221102000)(nAdttduCictmsmstmsmst22111-13iuC=0.2F1u=5+3cos200tV();it2t0t0u(t)1008emA,(0)100Vtiu(1)ttdtductic200sin12.0200sin)600(102.0)(6mA(2)tteidCutu10004005001)0()(V1-14iuL=25mHt=2ms5008(1e)mAti186|1002500msttuipedtdiLuwmV1-151-15uiu=-6+3=-3Vi=3.8A1-161-16i42.0.02.tidCC11)0()0id)0)00tiiC=C=0.20.2tt00sin)600(si)600(450050050050uu1-151-16I=0.5A1-171-17u2040u=10*(3+2)=50V-181-18is1-171-18is=-50mA1-191-19usus=100V1-201-20uis1-191-20u=8Vis=1A1-211-215=100V=100Viss1-171-171-201-21P2A=(10-8)*-2=-4WP8v=8*(-2)=-16WP-4A=10*--4=40WP5A=10*5=-50WP-3A=--3*10=30W1-221-221-22a,cKVL,KCL.1-231-231-2310W61-241-24a0|2mstdtdiLuPL=0(b)i=2*2=4AP=5*4=20w1-251-25s1VuR9Vu1-241-2512Pus=-us*5us=-5WPuR=us*5us=45WP5us=(us-uR)*5us=-40W1-261-26uis=2Au=*3is6*636V1-271-27us1-261-27iu1=7-2=5A,u1=-12V,us=u1+8=-4Vius=9.5APus=(-4)*9.5=-38WP0.25u1=-4*(-12*0.25)=12W7is=2A=2Auss2-12-1Is=16.5mARs=2kR1=40kR2=10kR3=25kI1I2I3+U–I3R2I2I1R1RsIsR32-1mA45k2100mA10k10100mA5.2k40100V100)25//10//40(5.16)////(332211321sRUIRUIRUIRRRIU2-22-2us=100VR1=2kR2=8k1R3=8k2R3=R33R3=0R33u2i2i3u2–+us–+i2R2R1i3R32-21R3=8kR2//R3=4kmA325k83200mA325k83200V3200442100)//(//32322232321s2RuiRuiRRRRRuu2R3=R30mA10k)82(100)(V80882100321s2221s2iRRuiRRRuu3R3=0R318k8kRk2//R//33=4k=4//22////sRRRR////2////umA50k21000,01s322Ruiiu2-32-31u2i22R1i2u2++usisR4R1R2R32-31s3232s32322,iRRRiiRRRRu2R1R12-42-4Rg=1kIg=100µA1mA10mA100mAS100mA10mARgIg1–+R31mAR232R12-41k1100))(100101(3213RRR111.11k91321RRR2k)1(100))(1001010(1323RRR11.11,100321RRR3k)1(100)10010100(2133RRR2100mA10mA32Rgg=1k=1kS–mA2-42-4111.11,1032RR1.11,10,010321RRR2-52-5II42A6V–+324V–+612-5I42A24V–+62A31I44A24V–+21I424V–+28V–+1I44V–+48V–+1I1A142A4I3A21A2332I2-62-6s0uuR1=R2=2R3=R4=1u3–+2u3R3u0+R2us–+R1R4–2-632A41A8VIi–+–+u3–+2u31u0+1us/21–u3–+2u31u0+2us/212–KVL0)11(2233siuuuiiu13s101uis301033212uiiiiuu103s0uu2-72-71RLIU23–+URLI2A10V–+2(b)2A10V–+–+RLI2U(a)2-7aI=10/2=5AU=10VP2A=2×10=20WP10V=(2-5)×10=-30WP2=2×52=50WbI=2AU=4VP2A=2×(10-4)=12WP10V=2×10=20WP2=2×22=8W2-82-8II12V8+–45442-844842=5A=5A=2×10=20W=2×10=20WP10V10V=(2-5)×10=-30W=(2-5)×10=-30WPP22=2×5=2×5=2A=2AII–URL2A2-72-10VV=(2-5)×10=-30W=(2-5)×10=-30W=50W50WU=4VVAA=2×(10-4)=12W=2×(10-4)=12W=2×10=20W=2×10=20WI12V2+–2514I12V+–266A2.121)26//6(12I2-92-9YRacb2-9YbcaR/3R/3R/32R/32R/32R/3R/3bcaR/3R/32R/92R/92R/9bcaR/35R/95R/95R/9bca52-102-10Rab(a)(c)11b1111aa4101047b(b)RRRRRRabRdc(d)RRRRRabRRR2-10aRab=3.5a527a3.5bbbRab=R/7cRab=0.5RaRRRRRRabR/7bdcdRab=2R/3a111111a11111ab0.5bbRRRRabRR6RR5RRR2-112-11Req4i2-11us–+ri–+iR1ReqR2(a)iR2i1R1Requs–+i1(b)aaKVLus=R1i+ri+R2iReqReq=us/i=R1+R2+rbbKVLus=R1i+R2i1KCLi=i1–i1ReqReq=us/i=R1+R2/(1–)2-122-12Req0.99i1100k100i125Requs–+10k2-1225)(99.0)10101101001(10100199.025101001)1010011001251(1112331312313nsnnsnnuuiiuuiuuuun1un2ReqReq=us/i1352-132-13abRabi1ba32–+i4us–+2-134i+4i+2(i+i1)=0us=3i14iiRab=us/i1=3.87((10100101001110100100113ii11u2525))1000011(())10111113nnnnuuR2-142-14Req114411ab141abReq2-141441eqeqeqRRRReq=4Req=22-1512–+–+(b)82-15–+–+(a)a611b610a48b58(b)(b)(a)(a)662-152-151111b2-162-15KCLKVLaKCL5KVL6bKCL5KVL5aKCL3KVL5bKCL4KVL42-172-17G4876543212-1744T312323583455676531T18T26316532T37T443242-182-18R4R1us1–+R2R3R6us3–+R5(a)+usR1isR2R4R3(b)a95363n1i1+i4+i6=0l3l1324516l2(a)n2i1+i2+i3=0n3i3–i6+i5=0l1R1i1+us1+R2i2–R4i4=0l2R3i3+us3+R5i5–R2i2=0l3R6i6–us3–R3i3–us1–R1i1=0bul3l1265314l2(b)n1i1+i4+i5=0n2i1+i2–is=0n3i3–i2–i4=0l1R1i1–u–us=0l2R2i2+R3i3+u=0l3R4i4–R2i2–R1i1=02-192-18a321R4R1us1–+R2R3us3–+R6R5(a)m1(R1+R2+R4)im1–R2im2–R1im3=–us1m2–R2im1+(R2+R3+R5)im2–R3im3=–us3m3–R1im1–R3im2+(R1+R3+R6)im3=us1+us32-202-18b321+usR1isR2R4R3(b)l1il1=isl2–R1il1+(R1+R2+R3)il2–(R1+R2)il3=usl3R1il1–(R1+R2)il2+(R1+R2+R4)il3=02-212-21U2-2118U+–3A136V–+250V–[phone]R4R+R2++RR++44))iim1R2im1m1+(+(RR+(+(2+3–RR––11iim1m1–Rbl1(2+8+40)il1–40il2–8il3=136l2–40il1+(10+40)il2–10il3=–50l3il3=3il1=8Ail2=6Ail3=3AU=40(il1–il2)=80V2-222-22I1I4V+–8I–+26V–+1024l1(10+2)Il1–2Il2=6–8Il2–2Il1+(2+4)Il2=–4+8II=Il2I=0.6A2-222-232-23IU+12I+–1I14V–+122V2332-23l1(1+1+2)Il1–2Il2–Il3=14+2l2–2Il1+(2+3)Il2=–2l3Il3=2II=Il2I=Il2=2AIl3=4AIl1=6AU=1×(Il1–Il3)=2VP=–U×2I=–8W2-242-24U2+–U7A+–7V2212311m1(1+2)Im1–Im2–2Im3=U+7m2–Im1+(2+2+1)Im2–2Im3=0m3–2Im1–2Im2+(2+2+1)Im3=UIm1–Im3=72-242-252-25us+G2–G3G4G5G1(a)G2iG4is1G3G5us5–+G6G1i(b)11222AIIl3l3III=4A=4UU=1×(=1×(UUI=1×(PP=–122-25a)()()(:n)()111(:n2n1n45s52n6541n5425s51s2n541n54321uuGiiuGuGGGuGGuGi